1998 Italian Open – Men's singles
Marcelo Ríos won the men's singles tennis title at the 1998 Italian Open after Albert Costa withdrew from the final due to a right wrist injury.
Álex Corretja was the defending champion, but lost in the second round to Karim Alami.
Seeds
- Pete Sampras '
- Petr Korda '
- Marcelo Ríos
- Patrick Rafter '
- Greg Rusedski '
- Yevgeny Kafelnikov '
- Jonas Björkman '
- Gustavo Kuerten '
- Álex Corretja '
- Karol Kučera '
- Richard Krajicek '
- Alberto Berasategui '
- Félix Mantilla '
- Carlos Moyà '
- Michael Chang '
- Cédric Pioline ''''
Qualifying
Lucky loser
- '''Sjeng Schalken'''